Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4700283 | Control system for an electric locomotive having AC to DC converters | Yoshio Tsutsui, Kiyoshi Nakamura, Akira Kimura, Hayato Imai, Kaoru Tamura | 1987-10-13 |
| 4306283 | Power factor improving apparatus for power converter | Hisakatsu Kiwaki, Kyozo Tachibana, Yoshimitsu Onoda, Katsuaki Suzuki, Tatsuo Horie +1 more | 1981-12-15 |